A skateboard bridge

Abstract

The present invention belongs to the technical field of skateboards, and particularly refers to a skateboard bridge. It includes a connecting seat for connecting the bottom of the skateboard, the connecting seat is provided with a connecting rod mounting hole, the connecting rod mounting hole is provided with a connecting rod, the connecting rod can rotate axially in the connecting mounting hole, the lower end of the connecting rod is rotatably connected to a clamp, the clamp is fixed with a wheel axle, the clamp and the wheel axle can rotate relative to the connecting rod and the connecting seat, and the two ends of the wheel axle are used to install wheels; the connecting rod is provided with an elastic sleeve, and the elastic sleeve is located between the clamp and the connecting seat to limit the relative rotation of the connecting rod and the clamp. The wheel axle and the connecting rod are arranged perpendicular to each other. Because the clamp and the rotating shaft can rotate relative to each other, the wheel axle can also tilt to the left and right sides relative to the connecting rod. The steering of the skateboard can be controlled by controlling the center of gravity of the skateboard and the inclination angle of the wheel axle. The structure is simple, the steering is convenient, the functions are complete, and it is very convenient to install.

Description

Technical Field

[0001] The invention belongs to the technical field of skateboards, in particular to a skateboard bridge. Background Art

[0002] Skateboarding is a board sport that evolved from surfing in the late 1950s and early 1960s. It is the originator of extreme sports. It is a device that athletes use to slide on different terrains, ground and specific facilities to the melody of music, and it is a skill sport that allows athletes to complete various complex sliding, jumping, spinning, flipping and other difficult movements. There are currently many skateboarding enthusiasts at home and abroad. The main structure of a skateboard includes a board body, and wheel frames are installed at the front and rear ends of the bottom of the board body, also known as skateboard bridges, and wheels are installed at both ends of the skateboard bridge. The skateboard bridge is the skateboard accessory that bears the most torque, the most extrusion, and the most friction in the entire skateboard. It also controls the steering of the skateboard. Its structure is very important for the entire skateboard. However, the structures of existing skateboard bridges are very complicated. Chinese patent CN104436621A discloses a skateboard bridge, which includes a bridge seat, a plurality of bridge nail rings, a plurality of PU pads, a bridge body, a main bridge nail and a nut. The bridge seat and the main bridge support position are provided with grooves. The bridge body includes a main bridge and a secondary bridge. The secondary bridge is arranged in the middle position of the main bridge and is perpendicular to it. The upper and lower surfaces of the connection position between the secondary bridge and the main bridge are provided with grooves. A relatively thin block is formed at the interval between the upper and lower grooves, and a through hole is provided in the middle of the block. Its structure includes the main bridge and the secondary bridge. The structure is also relatively complicated, and it is also relatively inconvenient to rotate. Therefore, a skateboard bridge with a better structure is now needed. Summary of the invention

[0003] The purpose of the present invention is to provide a skateboard bridge which has a simple structure and is easy to rotate.

[0004] The object of the present invention is achieved in that:

[0005] A skateboard bridge, comprising a connecting seat for connecting the bottom of a skateboard, the connecting seat is provided with a connecting rod mounting hole, a connecting rod is arranged in the connecting rod mounting hole, the connecting rod can axially rotate in the connecting rod mounting hole, the lower end of the connecting rod is rotatably connected to a clamp, a wheel axle is fixed on the clamp, the clamp and the wheel axle can rotate relative to the connecting rod and the connecting seat, and the two ends of the wheel axle are used to install wheels;

[0006] An elastic sleeve is sleeved on the connecting rod, and the elastic sleeve is located between the clamp and the connecting seat to limit the relative rotation of the connecting rod and the clamp.

[0007] The present invention further provides that the clamp includes an open annular portion and two connecting plates arranged at the open portion, the lower end of the connecting rod is located between the two connecting plates, an axial hole is provided on the lower end of the connection and the connecting plates, a pin is inserted into the axial hole, and the clamp and the connecting rod can rotate around the pin.

[0008] Furthermore, the present invention, the axial hole is a vertical waist-shaped hole, and the pin shaft can move up and down in the axial hole. Under normal conditions, the pin shaft is located at the upper end of the axial hole, and compression of the elastic sleeve can cause the connecting seat, connecting rod and pin shaft to move downward relative to the clamp and the wheel axle. When the elastic sleeve is restored, the connecting seat, connecting rod and pin shaft are also restored to their original positions.

[0009] According to a further feature of the present invention, a slot is formed in the middle section of the wheel axle, and the annular portion of the clamp is clamped in the slot.

[0010] Furthermore, according to the present invention, a gasket is provided between the elastic sleeve and the clamp.

[0011] Furthermore, in the present invention, the edge of the gasket is folded downward, and the folded portion wraps around the corner of the upper end of the clamp.

[0012] According to the present invention, a first bearing is provided on the connecting rod, the first bearing is located between the connecting seat and the elastic sleeve, and the upper and lower surfaces of the first bearing are in contact with the lower surface of the connecting seat and the upper surface of the elastic sleeve respectively.

[0013] Further, the present invention, the connecting rod mounting hole includes a through hole for mounting the connecting rod and a rotation limiting hole for limiting the rotation angle of the connecting rod, and the connecting rod is provided with a rotation limiting portion adapted to the rotation limiting hole, and the rotation limiting portion can rotate in the rotation limiting hole but its rotation angle is limited.

[0014] According to the present invention, a second bearing is sleeved on the connecting rod, and the second bearing is located between the connecting seat and the rotation limiting portion, and the upper and lower surfaces of the second bearing are respectively in contact with the lower surface of the rotation limiting portion and the upper surface of the connecting seat.

[0015] Furthermore, the rotation limiting hole is a rectangle, and the rotation limiting portion is a rectangle smaller than the rotation limiting hole. When the rotation limiting portion rotates to a certain angle, the corners of the rectangle will hit the inner wall of the rotation limiting hole, thereby limiting the rotation angle of the rotation limiting portion.

[0016] Furthermore, in the present invention, a reset member is provided between the outer wall of the rotation limiting portion and the inner wall of the rotation limiting hole, and the reset member is used to drive the rotation limiting portion to return to a normal position.

[0017] Furthermore, in the present invention, the reset member is a metal spring sheet, and the metal spring sheet can be arranged on one side or both sides of the rotation limiting portion.

[0018] Furthermore, in the present invention, the reset member is a spring, and the spring can be arranged on one side or both sides of the rotation limiting portion.

[0019] Furthermore, in the present invention, the connecting rod includes a rod body and a rotation limiting portion arranged above the rod body, and the rod body and the rotation limiting portion are connected as a whole through threads.

[0020] Compared with the prior art, the present invention has the following outstanding and beneficial technical effects:

[0021] The present invention is a skateboard bridge used on a skateboard, which mainly serves to connect a board body and a wheel, and can also serve as a skateboard steering function by tilting a wheel axle. Its specific structure includes a connecting seat that can be fixed to the bottom of the skateboard body, a connecting rod that can rotate axially is arranged in the middle position of the connecting seat, and the lower end of the connecting rod is connected to the wheel axle through a clamp, and the wheel axle and the connecting rod are arranged perpendicular to each other. Because the clamp and the rotating shaft can rotate relative to each other, the wheel axle can also be tilted to the left and right sides relative to the connecting rod. The steering of the skateboard can be controlled by controlling the center of gravity of the skateboard and the tilt angle of the wheel axle. The structure is simple, the steering is convenient, the function is complete, and it is very convenient to install. The present invention is also provided with an elastic sleeve between the clamp and the connecting seat, and the upper and lower ends of the elastic sleeve are against or indirectly against the connecting seat and the clamp. Therefore, when one side of the skateboard surface is pressed down to tilt the wheel axle, the clamp will compress the elastic sleeve to deform the elastic sleeve to one side. When the downward pressure is released, the elastic sleeve returns the wheel axle to the right position through its elasticity. The steering structure is simpler and has low cost compared with the prior art. BRIEF DESCRIPTION OF THE DRAWINGS

[0022] Figure 1 It is one of the structural schematic diagrams of the present invention.

[0023] Figure 2 This is the second structural schematic diagram of the present invention.

[0024] Figure 3 It is an exploded view of the present invention.

[0025] Figure 4 It is a top view of the present invention.

[0026] Figure 5 It is a structural schematic diagram of the clamp in the present invention.

[0027] Figure 6 It is a structural schematic diagram of the connecting rod in the present invention.

[0028] Figure 7 It is a structural schematic diagram of the connecting seat in the present invention.

[0029] The meaning of the symbols in the figure:

[0030] 1-connecting seat; 2-connecting rod mounting hole; 3-connecting rod; 4-hoop; 5-axle; 6-elastic sleeve;

[0031] 7-annular portion; 8-connecting piece; 9-axial hole; 10-pin shaft; 11-slot; 12-gasket; 13-first bearing; 14-through hole; 15-rotation limiting hole; 16-second bearing; 17-resetting member; 18-metal spring; 19-spring; 20-rotation limiting portion. DETAILED DESCRIPTION

[0032] The present invention will be further described below in conjunction with specific embodiments:

[0033] A skateboard bridge, comprising a connecting seat 1 for connecting the bottom of a skateboard, the connecting seat 1 is provided with a connecting rod mounting hole 2, a connecting rod 3 is arranged in the connecting rod mounting hole 2, the connecting rod 3 can axially rotate in the connecting mounting hole, the lower end of the connecting rod 3 is rotatably connected with a clamp 4, a wheel axle 5 is fixed on the clamp 4, the clamp 4 and the wheel axle 5 can rotate relative to the connecting rod 3 and the connecting seat 1, and the two ends of the wheel axle 5 are used to install wheels;

[0034] An elastic sleeve 6 is sleeved on the connecting rod 3 , and the elastic sleeve 6 is located between the clamp 4 and the connecting seat 1 to limit the relative rotation of the connecting rod 3 and the clamp 4 .

[0035] The present invention is a skateboard bridge used on a skateboard, which mainly serves to connect a skateboard body and wheels, and can also serve to turn the skateboard by tilting a wheel axle 5. Its specific structure includes a connecting seat 1 that can be fixed to the bottom of the skateboard body, a connecting rod 3 that can rotate axially is arranged in the middle of the connecting seat 1, and the lower end of the connecting rod 3 is connected to the wheel axle 5 through a clamp 4, and the wheel axle 5 and the connecting rod 3 are arranged perpendicular to each other. Because the clamp 4 and the rotating shaft can rotate relative to each other, the wheel axle 5 can also be tilted to the left and right sides relative to the connecting rod 3. The steering of the skateboard can be controlled by controlling the center of gravity of the skateboard and the tilt angle of the wheel axle 5. The structure is simple, the steering is convenient, the functions are complete, and it is very convenient to install. The present invention further provides an elastic sleeve 6 between the clamp 4 and the connecting seat 1, and the upper and lower ends of the elastic sleeve 6 abut against or indirectly abut against the connecting seat 1 and the clamp 4. Therefore, when one side of the skateboard surface is pressed down to tilt the wheel axle 5, the clamp 4 will compress the elastic sleeve 6 to deform the elastic sleeve 6 to one side. When the downward pressure is released, the elastic sleeve 6 returns the wheel axle 5 to the center through its elasticity. The steering structure is simpler and has lower cost than the prior art.

[0036] A preferred solution of the present invention is that the clamp 4 includes an open annular portion 7 and two connecting plates 8 arranged at the open portion, the lower end of the connecting rod 3 is located between the two connecting plates 8, and an axial hole 9 is provided on the lower end of the connection and the connecting plate 8, a pin shaft 10 is inserted into the axial hole 9, and the clamp 4 and the connecting rod 3 can rotate around the pin shaft 10.

[0037] The present invention further provides that the shaft hole 9 is a vertical waist-shaped hole, and the pin 10 can move up and down in the shaft hole 9. Under normal conditions, the pin 10 is located at the upper end of the shaft hole 9. Compressing the elastic sleeve 6 can cause the connecting seat 1, the connecting rod 3 and the pin 10 to move downward relative to the clamp 4 and the axle 5. The elastic sleeve 6 is restored, and the connecting seat 1, the connecting rod 3 and the pin 10 are also restored to their original positions. The vertical waist-shaped shaft hole 9 design allows the connecting seat 1 and the axle 5 to have a certain upward and downward movement space, thereby achieving a shock-absorbing effect. When sliding on a bumpy road, the force generated by the bump will act on the elastic sleeve 6 between the connecting seat 1 and the axle 5. The elastic sleeve 6 will be compressed by the force. After the elastic sleeve is compressed, a certain movement space will be left at the lower end of the waist-shaped shaft hole 9 for the pin 10, thereby reducing most of the vibration and bumps. The elastic sleeve 6 can use a shock-absorbing pad or shock-absorbing spring with greater elasticity.

[0038] A preferred solution of the present invention is that a slot 11 is formed in the middle section of the axle 5, and the annular portion 7 of the clamp 4 is clamped in the slot 11. After the axle 5 is installed on the clamp 4, the clamp 4 and the middle part of the axle 5 can be welded together by welding, which has higher structural strength and is not easy to wear and break.

[0039] A preferred solution of the present invention is that a gasket 12 is provided between the elastic sleeve 6 and the clamp 4. When the skateboard is in use, the metal clamp 4 will often rub against the elastic sleeve 6 made of flexible material. In order to prevent the elastic sleeve 6 from being damaged due to friction too quickly, a metal gasket 12 is installed between the elastic sleeve 6 and the clamp 4 in this product, so that the service life of the elastic sleeve 6 can be extended.

[0040] A preferred solution of the present invention is that the edge of the gasket 12 is folded downward, and the folded portion wraps around the corners of the upper end of the clamp 4. The gasket 12 is also called a bowl-shaped gasket 12, and wrapping around the corners of the upper end of the clamp 4 also reduces the safety hazards caused by the sharp corners on the product.

[0041] A preferred solution of the present invention is that the connecting rod 3 is sleeved with a first bearing 13, the first bearing 13 is located between the connecting seat 1 and the elastic sleeve 6, and the upper and lower surfaces of the first bearing 13 are in contact with the lower surface of the connecting seat 1 and the upper surface of the elastic sleeve 6 respectively. The first bearing 13 is a plane bearing, and the first bearing 13 can make the connecting rod 3 easier and smoother when rotating axially, and the friction between the elastic sleeve 6 and the connecting seat 1 is smaller. It can greatly improve the user experience.

[0042] A preferred solution of the present invention is that a second bearing 16 is sleeved on the connecting rod 3, and the second bearing 16 is located between the connecting seat 1 and the rotation limiting portion 20, and the upper and lower surfaces of the second bearing 16 are respectively in contact with the lower surface of the rotation limiting portion 20 and the upper surface of the connecting seat 1. The second bearing 16 is also a plane bearing, and its function is basically the same as that of the first bearing 13. It is arranged between the rotation limiting portion 20 and the connecting seat 1 to reduce the friction between the two when the connecting rod 3 rotates, so that the connecting rod 3 can rotate more smoothly.

[0043] A preferred solution of the present invention is that the connecting rod mounting hole 2 includes a through hole 14 for mounting the connecting rod 3 and a rotation limiting hole 15 for limiting the rotation angle of the connecting rod 3. The connecting rod 3 is provided with a rotation limiting portion 20 adapted to the rotation limiting hole 15, and the rotation limiting portion 20 can rotate in the rotation limiting hole 15 but limits its rotation angle. The rotation limiting hole 15 is a countersunk hole, and the rotation limiting portion 20 is provided in the countersunk hole.

[0044] A preferred solution of the present invention is that the rotation limiting hole 15 is a rectangle, and the rotation limiting portion 20 is a rectangle smaller than the rotation limiting hole 15. When the rotation limiting portion 20 rotates to a certain angle, the corners of the rectangle will hit the inner wall of the rotation limiting hole 15, thereby limiting the rotation angle of the rotation limiting portion 20. The long side of the rotation limiting portion 20 is larger than the short side of the rotation limiting hole 15, so that the rotation limiting portion 20 can rotate within the rotation limiting hole 15 to a certain angle but cannot rotate one circle.

[0045] A preferred solution of the present invention is that a reset member 17 is provided between the outer wall of the rotation limiting portion 20 and the inner wall of the rotation limiting hole 15 , and the reset member 17 is used to drive the rotation limiting portion 20 to return to the normal position.

[0046] In a preferred solution of the present invention, the reset member 17 is a metal spring sheet 18 , and the metal spring sheet 18 can be arranged on one side or both sides of the rotation limiting portion 20 .

[0047] In a preferred solution of the present invention, the reset member 17 is a spring 19 , and the spring 19 can be arranged on one side or both sides of the rotation limiting portion 20 .

[0048] A preferred solution of the present invention is that the connecting rod 3 includes a rod body and a rotation limiting portion 20 arranged above the rod body, and the rod body and the rotation limiting portion 20 are connected as one body through threads.

[0049] The above embodiments are only preferred embodiments of the present invention and are not intended to limit the protection scope of the present invention. Therefore, any equivalent changes made based on the structure, shape, and principle of the present invention should be included in the protection scope of the present invention.

Claims

1. A skateboard bridge, characterized in that: The invention comprises a connecting seat (1) for connecting the bottom of a skateboard, the connecting seat (1) is provided with a connecting rod mounting hole (2), a connecting rod (3) is arranged in the connecting rod mounting hole (2), the connecting rod (3) can axially rotate in the connecting rod mounting hole (2), the lower end of the connecting rod (3) is rotatably connected with a clamp (4), a wheel axle (5) is fixed on the clamp (4), the clamp (4) and the wheel axle (5) can rotate relative to the connecting rod (3) and the connecting seat (1), and the two ends of the wheel axle (5) are used for mounting wheels; The connecting rod (3) is sleeved with an elastic sleeve (6), and the elastic sleeve (6) is located between the hoop (4) and the connecting seat (1) and is used to limit the relative rotation of the connecting rod (3) and the hoop (4); the hoop (4) comprises an open annular portion (7) and two connecting pieces (8) arranged at the open portion, the lower end of the connecting rod (3) is located between the two connecting pieces (8), and the lower end of the connecting rod (3) and the connecting piece (8) are both provided with an axial hole (9), and a pin shaft (10) is inserted into the axial hole (9). The hoop (4) and the connecting rod (3) can rotate around the pin (10); the shaft hole (9) is a vertical waist-shaped hole, and the pin (10) can move up and down in the shaft hole (9). Under normal conditions, the pin (10) is located at the upper end of the shaft hole (9). Compressing the elastic sleeve (6) can make the connecting seat (1), the connecting rod (3) and the pin move downward relative to the hoop (4) and the axle (5). When the elastic sleeve (6) is restored, the connecting seat (1), the connecting rod (3) and the pin (10) are also restored to their original positions. The connecting rod mounting hole (2) comprises a through hole (14) for mounting the connecting rod (3) and a rotation limiting hole (15) for limiting the rotation angle of the connecting rod (3); the connecting rod (3) is provided with a rotation limiting portion (20) adapted to the rotation limiting hole (15); the rotation limiting portion (20) can rotate in the rotation limiting hole (15) but its rotation angle is limited; The connecting rod (3) is sleeved with a second bearing (16), the second bearing (16) is located between the connecting seat (1) and the rotation limiting portion (20), and the upper and lower surfaces of the second bearing (16) are in contact with the lower surface of the rotation limiting portion (20) and the upper surface of the connecting seat (1) respectively; The rotation limiting hole (15) is a rectangle, and the rotation limiting portion (20) is a rectangle smaller than the rotation limiting hole (15). When the rotation limiting portion (20) is rotated to a certain angle, the corners of the rectangle will hit the inner wall of the rotation limiting hole (15), thereby limiting the rotation angle of the rotation limiting portion (20); A reset member (17) is provided between the outer wall of the rotation limiting portion (20) and the inner wall of the rotation limiting hole (15), and the reset member (17) is used to drive the rotation limiting portion (20) to return to the original position. The reset member (17) is a metal spring sheet (18), and the metal spring sheet (18) can be provided on one side or both sides of the rotation limiting portion (20).

2. A skateboard bridge according to claim 1, characterized in that: A clamping groove (11) is formed in the middle section of the wheel axle (5), and the annular portion (7) of the clamping hoop (4) is clamped in the clamping groove (11).

3. A skateboard bridge according to claim 1, characterized in that: A gasket (12) is provided between the elastic sleeve (6) and the clamp (4); the edge of the gasket (12) is folded downward, and the folded portion wraps around the corner of the upper end of the clamp (4).

4. The skateboard bridge according to claim 1, characterized in that: The connecting rod (3) is sleeved with a first bearing (13), the first bearing (13) is located between the connecting seat (1) and the elastic sleeve (6), and the upper and lower surfaces of the first bearing (13) are in contact with the lower surface of the connecting seat (1) and the upper surface of the elastic sleeve (6) respectively.

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